Abstract.
We present highlights from a study of galaxy populations and the intracluster medium (ICM) in three galaxy clusters at z > 1.2, the most distant X-ray luminous clusters currently known. Clusters are homogeneously selected from the ROSAT Deep Cluster Surveys (RDCS) which contains more than 100 spectroscopically confirmed clusters out to \(z \simeq 1.3\). Deep Chandra observations of two clusters at \(z \simeq 1.26\) have allowed for the first time physical parameters of the ICM to be measured at z > 1 and the morphology of the X-ray gas to be compared with the spatial distribution of the red member galaxies. The homogeneity of the spectrophotometric properties of early type galaxies in different clusters at z > 1.2 fits naturally into a scenario where their stellar populations formed at \(z \gtrsim 3\), most likely before their host clusters.
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Rosati, P., Stanford, A., Lidman, C., Mainieri, V., Eisenhardt, P. A Deep Look at the Most Distant X-Ray Clusters. In: Cristiani, S., Renzini, A., Williams, R.E. (eds) Deep Fields. ESO ASTROPHYSICS SYMPOSIA. Springer, Berlin, Heidelberg. https://doi.org/10.1007/10854354_50
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DOI: https://doi.org/10.1007/10854354_50
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Publisher Name: Springer, Berlin, Heidelberg
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